
Shimano BB-RS501 Bottom Bracket - Hollowtech II | Thread Type | ITA-70-24
The Shimano BB-RS501 bottom bracket features a special seal design which noticeably extends the service life. The bearing cups with ITA thread are perfectly matched to the interaction with Hollowtech II cranksets. Material: aluminum (anodized) Weight: approx. 93 g (manufacturer's specification)











